All categories

3 years ago

Which of the following is not required for the proper use of molecular beacons?

Biology

1 answer:

arlik [135]3 years ago

7 0

Answer:

b. Detachment of a separate hybridized probe molecule from the template DNA

Explanation:

Molecular beacons are a type of genetic probe that enables the hybridization of oligonucleotides. These molecules have a flourishing component that binds to a nucleotide sequence and allows the identification of this nucleotide sequence in DNA or RNA without the release of radioactivity. For the use of these molecular beacons to be possible, one needs complementarity between the model DNA and the probe sequence, illumination of the hybridized beacon to detect fluorescence and proximity-based quenching of the fluorophore prior to beacon hybridization.

You might be interested in

Listed in the Item Bank are key terms and expressions, each of which is associated with one of the columns. Some terms may displ

melomori [17]

Answer:

Advantages:

Low Level Irradiation kills bacteria and parasites.

The Nutrition value of of irradiated food is the same as regular food with less bacteria.

Irradiation makes fruits and vegetables riper and spoil slower.

Disadvantages:

Irradiation will increase cost of food.

The percentage of radiation as always being negative will also make

Irradiated food are not widely available yet.

6 0

2 years ago

A florist is processing the plants she received in an order. The plants are shipped in plastic on a truck with misters. When loo

ArbitrLikvidat [17]

<h3>Blight</h3>

➡Gray mold is caused by the fungus Botrytis cinerea.

➡It is a fungal disease.

➡It causes flowers to blight.

7 0

2 years ago

The most distinctive characteristic of leaf mesophyll cells is that they are filled with

Katyanochek1 [597]

<h2>Mesophyll cells</h2>

Explanation:

The most distinctive characteristic of leaf mesophyll cells is that they are filled with many chloroplasts

Mesophyll cells constitute the main body of a leaf, occurring between upper and lower epidermis

Typically, the leaves of temperate-zone plants have two layers of mesophyll cells, the palisade mesophyll on the upper side and the spongy mesophyll on the lower side

The palisade mesophyll is a layer of densely packed, columnar cells which contain many chloroplasts, this layer is responsible for most of the photosynthesis of leaves

The spongy mesophyll is composed of large, often odd-shaped, photosynthetic cells separated from one another by large, intercellular spaces, these intercellular spaces apparently facilitate the exchange of photosynthetic gases

8 0

3 years ago

Describe how biogeographical studies, esp. of islands and continents, explain species similarities and differences

Elan Coil [88]

Biogeographical studies use information for various fields, such as evolutionary biology, geography, geology, and climate science to determine how organisms evolved through time and how the moving of tectonic plates resulting in forming continents, mountain ranges and islands has affected their distribution.
Studies in this field explain how organisms that now live on different continents are very closely related and how the flora and fauna of islands are connected to one of the closest continents etc.

5 0

3 years ago

Limestone is a rock formed from calcite. Calcite can be easily dissolved by acids. Marble is a rock formed from limestone. There

Umnica [9.8K]

Answer:

All of these are correct

Explanation:

According to the question, marble is a rock formed from limestone, which in turn is also formed from Calcite. This shows that marble is a kind of metamorphic rock because a metamorphic rock is any rock that is formed by the alteration of other rocks caused by heat, pressure or chemicals etc. These changes that occurs in the previously existing rocks are called METAMORPHOSIS.

Hence, since marble is formed from limestone, it concludes that marble is a metamorphosed rock formed from a previously existing limestone rock. Also, since Calcite, a precursor of limestone that marble is formed from can be degraded by acids, both limestone and marble which are formed from it will also be dissolvable by acids.

8 0

3 years ago